Fact Pattern 16-1 Grain Co-Op, LLC and Hearty Cereals, Inc., Discuss the Terms

Multiple Choice

Fact Pattern 16-1
Grain Co-op, LLC and Hearty Cereals, Inc., discuss the terms of a contract for periodic deliveries of corn. Grain faxes Hearty a memo on Grain's letterhead that summarizes the points on which they agreed, including a two-year term. Grain begins to perform, and Hearty accepts the deliveries but refuses to pay.
-Refer to Fact Pattern 16-1. Between Grain and Hearty, this contract is most likely enforceable against​

A) ​neither party.
B) ​Grain only.
C) ​Hearty only.
D) ​Grain and Hearty, at least to the extent of the performance.